HV Primary Plant Technician: Transformer Installations

H&MV Engineering; Helsinki; On-site; EUR 48,000 - 68,000; Full time

Job summary

H&MV Engineering seeks an experienced Primary Plant Technician (Suurjänniteasentaja) to lead high‑voltage primary plant work on transformer installation at substations, solar/wind, and storage projects. The role combines hands‑on supervision with guidance for apprentices, ensuring safe, compliant execution.

You will oversee installation, testing, and maintenance of AIS and GIS equipment, and collaborate with engineers, commissioning, and logistics teams across northern Europe.

Qualifications

• Minimum 3 years hands-on HV/substation experience.
• Certifications in electrical fitting, HV systems, or transformer installation desirable.
• Able to read electrical schematics and follow safety protocols.

Responsibilities

• Safely install, assemble, maintain, test, and inspect HV primary plant equipment.
• Ensure work complies with project specs, procedures, safety and quality standards.
• Travel within northern Europe as required.
• Install and maintain transformers, GIS/AIS switchgear, circuit breakers, disconnectors, CTs/VTs.
• Support oil filling, vacuum treatment, leak testing.

Skills

HV systems

Transformer installation

Electrical schematics

Safety protocols

Team collaboration

Education

Electrical certifications

Job description

H&MV Engineering seeks an experienced Primary Plant Technician (Suurjänniteasentaja) to lead high‑voltage primary plant work on transformer installation at substations, solar/wind, and storage projects. The role combines hands‑on supervision with guidance for apprentices, ensuring safe, compliant execution.

You will oversee installation, testing, and maintenance of AIS and GIS equipment, and collaborate with engineers, commissioning, and logistics teams across northern Europe.